Step 1: WHAT YOU NEED!
4 ft. of 1/2in. PVC (ALSO HAD ALOT OF THIS)
elastic string( i used this cause i have alot of it! use nylon its better!!)
1 panel nail
Step 3: Measure the string
Loop both sides and put it in the notching.
Then connect the other side! And make sure when the string want stretch no more!'